What is the differwnce between colloidals and suspensions? Give some examples
Answers
Difference Between Colloid and Suspension
1-Definition
Colloid: Dispersion system with a liquid and solid component, with particles size between 1 and 100 nm is called colloid.
Suspension: Dispersion system with a liquid and solid component, with particles size above 100 nm is called suspension.
2-Particle size
Colloid: The particle size is 1-100 nm.
Suspension: The particle size is above 100 nm.
3-Particle visibility
Colloid: The particles in the colloid cannot be seen with a naked eye.
Suspension: The particles in the suspension can be seen with a naked eye.
4-Sedimentation
Colloid: The colloids don’t undergo sedimentation.
Suspension: The suspensions undergo sedimentation.
5-Homogeneity
Colloid: The colloids are relatively homogenous.
Suspension: The suspensions are heterogeneous.
6-Permeability through filter paper
Colloid: The colloid particles can pass through filter paper.
Suspension: The suspension particles cannot pass through filter paper.
Examples
Colloid: Gelatin in water, starch in water, sodium chloride in benzene, etc.
Suspension: Sand in water, powdered chalk in water, mercury in oil, etc.
Hello friend !! here is your answer......
A colloid is a substance in which microscopic particles are dispersed in a medium, but are not dissolved in it. If left undisturbed, the dispersed particles will not settle or form sediment. Pumice could be an example of a colloid: particles of air dispersed in solid stone.
A suspension is similar to a colloid except that the dispersed particles tend to be larger and will eventually settle or form sediment. Sand in water could be an example of a suspension: if shaken then the sand will disperse in the water, but if left alone it will settle at the bottom.
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